A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GYPSUM SLURRY
PROBLEM TO BE SOLVED: To provide a gypsum slurry having excellent fluidity and a low pH.SOLUTION: There is provided a gypsum slurry which comprises: a phosphoric acid ester-based polymer (A) obtained by copolymerizing a specific monomer 1 having a polyoxyalkylene group in a specific range, a phosphoric acid monoester-based monomer 2 and a phosphoric acid diester-based monomer 3 in a specific ratio; gypsum (B); and water, wherein the gypsum slurry contains 0.02 pt.mass or more and 1.0 pt.mass or less of the phosphoric acid ester-based polymer (A) based on 100 pts.mass of the gypsum (B) and has a pH of 5.0 or more and 6.0 or less at 20°C.
【課題】流動性に優れたｐＨの低い石膏スラリーを提供する。【解決手段】特定範囲のポリオキシアルキレン基を有する特定の単量体１とリン酸モノエステル系単量体２と、リン酸ジエステル系単量体３とを特定の比率で共重合して得られるリン酸エステル系重合体（Ａ）、石膏（Ｂ）、及び水を含有し、リン酸エステル系重合体（Ａ）を、石膏（Ｂ）１００質量部に対して、０．０２質量部以上、１．０質量部以下含有し、２０℃でのｐＨが５．０以上、６．０以下である、石膏スラリー。【選択図】なし
GYPSUM SLURRY
PROBLEM TO BE SOLVED: To provide a gypsum slurry having excellent fluidity and a low pH.SOLUTION: There is provided a gypsum slurry which comprises: a phosphoric acid ester-based polymer (A) obtained by copolymerizing a specific monomer 1 having a polyoxyalkylene group in a specific range, a phosphoric acid monoester-based monomer 2 and a phosphoric acid diester-based monomer 3 in a specific ratio; gypsum (B); and water, wherein the gypsum slurry contains 0.02 pt.mass or more and 1.0 pt.mass or less of the phosphoric acid ester-based polymer (A) based on 100 pts.mass of the gypsum (B) and has a pH of 5.0 or more and 6.0 or less at 20°C.
【課題】流動性に優れたｐＨの低い石膏スラリーを提供する。【解決手段】特定範囲のポリオキシアルキレン基を有する特定の単量体１とリン酸モノエステル系単量体２と、リン酸ジエステル系単量体３とを特定の比率で共重合して得られるリン酸エステル系重合体（Ａ）、石膏（Ｂ）、及び水を含有し、リン酸エステル系重合体（Ａ）を、石膏（Ｂ）１００質量部に対して、０．０２質量部以上、１．０質量部以下含有し、２０℃でのｐＨが５．０以上、６．０以下である、石膏スラリー。【選択図】なし
GYPSUM SLURRY
石膏スラリー
YOSHINAMI YUSUKE (author) / SUZUKI KENICHI (author) / HAMAI TOSHIMASA (author)
2015-06-22
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen